81397980, eighty-one million three hundred ninety-seven thousand nine hundred eighty: Prime Factorization, Divisors, Base conversion, Basic calculations, Geometric Shapes

Max	9223372036854775807
25835	Positive integer
0b10001100	Binary number
01771452	Octal number
0x129abf	Hex number
5.012 * 10^7	Scientific notation
2^4 * 5	Factorized form
*	Random number

Interesting facts

81397980 has 96 divisors, whose sum is 254580480
The reverse of 81397980 is 08979318
Previous prime number is 307

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 45
Digital Root 9

Name

Name	eighty-one million three hundred ninety-seven thousand nine hundred eighty

Notation

Scientific notation	8.1397980 × 10^7
Engineering notation	8.1397980 × 10^6

Prime Factorization of 81397980

Prime Factorization 2 × 2 × 9 × 3 × 5 × 307 × 491

Composite number

ω	Distinct Factors	6	Total number of distinct prime factors
Ω	Total Factors	7	Total number of prime factors
rad	Radical	40698990	Product of the distinct prime numbers

The prime factorization of 81397980 is 2 × 2 × 9 × 3 × 5 × 307 × 491. Since it has a total of 7 prime factors.

Most popular turbo-numbers

9, 4, 89, 58, 194, 769, 231, 5068, 29990, 27451, 297619, 868110, 683328, 6379775, 91817859, 42569065, 382386381, 423581692, 7071851998, 2562948048

Basic calculations (n = 81397980)

Multiplication

n×y

n×2	162795960
n×3	244193940
n×4	325591920
n×5	406989900

Division

n÷y

n÷2	40698990
n÷3	27132660
n÷3	20349495
n÷5	16279596

Exponentiation

n^y

n²	6625631148080400
n³	5.3931299167883E+23
n⁴	4.3898988110413E+31
n⁵	3.5732889562317E+39

Nth Root

^y√n

²√n	9022.0829080651
³√n	433.38233896794
⁴√n	94.984645643731
⁵√n	38.205221814613

Divisors of 81397980

1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 307, 491, 540, 614, 921, 982, 1228, 1473, 1535, 1842, 1964, 2455, 2763, 2946, 3070, 3684, 4419, 4605, 4910, 5526, 5892, 6140, 7365, 8289, 8838, 9210, 9820, 11052, 13257, 13815, 14730, 16578, 17676, 18420, 22095, 26514, 27630, 29460, 33156, 41445, 44190, 53028, 55260, 66285, 82890, 88380, 132570, 150737, 165780, 265140, 301474, 452211, 602948, 753685, 904422, 1356633, 1507370, 1808844, 2261055, 2713266, 3014740, 4069899, 4522110, 5426532, 6783165, 8139798, 9044220, 13566330, 16279596, 20349495, 27132660, 40698990, 81397980

96 divisors

τ	Total Divisors	96	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-81397979	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.010416666666667	Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G	Geometric Mean	1	Returns the nth root of the product of n divisors
H	Harmonic Mean	96	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81397980 can be divided by 96 positive divisors. The sum of these divisors (counting 81397980) is 1, the average is 0.010416666666667.

Base conversion 81397980

Base	System	Value
2	Binary	100110110100000100011011100
3	Ternary	12200011110001000
4	Quaternary	10312200203130
5	Quinary	131314213410
6	Senary	12024350300
8	Octal	466404334
10	Decimal	81397980
12	Duodecimal	23315390
16	Hexadecimal	4da08dc
20	Vigesimal	158eej0
36	Base36	1cgn30

Cryptographic Hash Functions

md5	c25b17a984a8c31741ef09426baeafd0
sha1	2b6cf32c14727c64d93908420b49b5a6c2ae596f
sha256	f9da64dbb3ef3dc287c95923c0525c631de8b535f46a506e7f3557eea6e62a3b
sha512	9b5369a94b13db61790a5cbec271be5c025915d846d5631aa8114035e4d8a3394372f7b19886a0e5b491bf6384be269dfaee097395a881a85dc801a29bfd86d0
ripemd-160	cbf40e83b169c67f03608dc943b51bff4ddfba3e

81397980 as geometric shapes

Circle

Radius = n

Diameter	162795960
Circumference	511438591.9701
Area	2.0815034140205E+16

Sphere

Radius = n

Volume	2.2590689768583E+24
Surface area	8.326013656082E+16
Circumference	511438591.9701

Square

Length = n

Perimeter	325591920
Area	6625631148080400
Diagonal	115114127.26577

Cube

Length = n

Surface area	39753786888482400
Volume	5.3931299167883E+23
Space diagonal	140985436.99348

Equilateral Triangle

Length = n

Perimeter	244193940
Area	2.8689824451715E+15
Altitude	70492718.496738

Triangular Pyramid

Length = n

Surface area	2.8689824451715E+15
Volume	6.3558645599684E+22
Height	38371375.755258